Quarterly report pursuant to Section 13 or 15(d)

Note 5 - Equity - Stock-based Compensation (Details)

v3.21.1
Note 5 - Equity - Stock-based Compensation (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Stock-based compensation expense $ 405 $ 397
General and Administrative Expense [Member]    
Stock-based compensation expense 309 334
Research and Development Expense [Member]    
Stock-based compensation expense $ 96 $ 63